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Old 05-30-2011, 07:15 PM   #1
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Differential Covers

I'm looking at the different differential covers online and need some help on which one is the best.

Im looking at either the:

Riddler Cover
Differential Cover by Riddler and Other Jeep Parts and Jeep Accessories by 4 Wheel Drive Hardware

Or the

ARB Cover
Competition Differential Cover by ARB and Other Jeep Parts and Jeep Accessories by 4 Wheel Drive Hardware

I am open to other suggestions that you may have...

I have an 04 LJ with D30+ and D44 both with lockers.

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1998 Jeep Wrangler Sport 4.0: Hardtop, 4" Procomp Lift, Savvy Control Arms, 1" BL, 35" MTR's, Super D30(Chromoly), Super D44(Chomoly) with disc brakes, 4.88 Gears, ARB Lockers
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Old 05-30-2011, 07:21 PM   #2
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Need I say more?



But I have actually heard people with the ARB covers having issues and all ARB would say is that it states that they are competition not daily use.

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Old 05-30-2011, 07:26 PM   #3
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Originally Posted by Jp90Talon View Post
Need I say more?



But I have actually heard people with the ARB covers having issues and all ARB would say is that it states that they are competition not daily use.
I have seen this vid and that is what makes me lean more towards the Riddlers and the fact that they have a rounder build for rolling off rocks.

What kind of issues are they having with the ARBs? Are they small or big issues?
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1998 Jeep Wrangler Sport 4.0: Hardtop, 4" Procomp Lift, Savvy Control Arms, 1" BL, 35" MTR's, Super D30(Chromoly), Super D44(Chomoly) with disc brakes, 4.88 Gears, ARB Lockers
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Old 05-31-2011, 12:40 PM   #4
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Quote:
Originally Posted by Fred1 View Post
I have seen this vid and that is what makes me lean more towards the Riddlers and the fact that they have a rounder build for rolling off rocks.

What kind of issues are they having with the ARBs? Are they small or big issues?
Before you buy ANYTHING, make sure to read this thread in its entirety.
tj front adjustable track bars for 0-3.5", does yours hit or fit? - JeepForum.com

The best clearance diff cover is the stock cover. I've had Riddler's and now SOLID. The Riddler in front was HORRIBLE for diff cover vs track bar clearance. It required about 3-3.5" of bumpstop clearance to clear the aftermarket track bar. The rear D44 version also rubbed the gas tank skid in back.

Stock track bar vs Crane (similar to Riddler):


Riddler vs JKS track bar:



Riddler D44 front vs Currie TJS track bar, with 2" bumpstop extension


I finally got my SOLID to clear by making it a "SOLI" diff cover - I cut half the front face off, ground the upper rib completely away and welded 3/8" plate on the backside. My custom track bar ended up requiring 1-3/8" bumpstop extension and a V8 ZJ tie-rod.


ARB is one of the worst clearance diff covers available.


Straight track bars, like the Rubicon Express, hit the stock diff cover - even with 2" of bumpstop extension.


Another example:


The moral of the story - buy something with the best chance of clearing your current track bar setup with the existing bumpstop extension. Look at a Barnett/T&J, or junkyard covers with bolt on skids. HP D30's have a higher fill plug and can be 3/16" thick. Late 70s trucks will have 3/16" thick front D44 covers, those will bolt right on the rear of a TJ D44. Make sure you check clearances at FULL BUMP!
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